The A REVIEW ON CASING WHILE DRILLING (CWD) TECHNOLOGY FOR OIL AND GAS PRODUCTION
Main Article Content
Abstract
The extraction of petroleum fluids from sub-surface accumulations mandates the drilling of a well into the formation containing the
accumulation. The drilling techniques have evolved over time to overcome several challenges while some of the issues still prevail with the
currently used drilling practices like loss circulation, large tripping time to change bottom hole assembly, stuck pipe problems and low well
bore stability, to name a few. These decrease the drilling efficiency and increase the Non-Productive Time (NPT) of this highly
capitalintensive industry encouraging the Petroleum Industry to look for new technology. Casing while Drilling (CwD) is a technique of
drilling which has been proven to alleviate many of the problems faced while drilling. It has proven to be beneficial in controlling loss
circulation and improving wellbore stability by ‘Plastering’ effect, high quality cement job and increased rig floor safety. It uses smaller rig
and less fuel thereby reducing carbon footprint in the environment. This paper reviews casing while drilling (CwD) technology for oil and
gas production. Categories, components, accessories and challenges of CwD are discussed in this paper
Downloads
Metrics
Article Details
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
